Παραπομπή APA

American association of petroleum geologists. (1917). American association of petroleum geologists (AAPG) bulletin. American association of petroleum geologists, Inc.

Παραπομπή Chicago Style

American association of petroleum geologists. American Association of Petroleum Geologists (AAPG) Bulletin. Oklahoma: American association of petroleum geologists, Inc, 1917.

Παραπομπή MLA

American association of petroleum geologists. American Association of Petroleum Geologists (AAPG) Bulletin. American association of petroleum geologists, Inc, 1917.